Zhang Zai (simplified Chinese: 张载; traditional Chinese: 張載; pinyin: Zhāng Zài; Wade–Giles: Chang Tsai) was a Chinese Neo-Confucian moral philosopher and cosmologist. He is most known for laying out four ontological goals for intellectuals: To build up the manifestations of Heaven and Earth's spirit, to build up good life for the populace, to develop past sages' endangered scholarship, and to open up eternal peace.
